106 lines
3.1 KiB
Python
106 lines
3.1 KiB
Python
from bottle import redirect, request, response
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from functools import wraps
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from inspect import Signature
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import jwt
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from os import path, urandom
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from pylibscrypt import scrypt_mcf, scrypt_mcf_check
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import sqlite3
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class DB(object):
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def __init__(self):
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dbfile = path.join(path.dirname(path.abspath(__file__)),
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'ticketfrei.sqlite')
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dbfile = ':memory:'
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self.conn = sqlite3.connect(dbfile)
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self.cur = self.conn.cursor()
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self.secret = urandom(32)
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self.create()
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def create(self):
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# init db
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self.cur.executescript('''
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CREATE TABLE user (
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id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
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email TEXT,
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passhash TEXT,
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enabled INTEGER DEFAULT 1
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);
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''')
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def token(self, email, password):
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return jwt.encode({
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'email': email,
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'passhash': scrypt_mcf(password.encode('utf-8')).decode('ascii')
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}, self.secret).decode('ascii')
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def register(self, token):
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json = jwt.decode(token, self.secret)
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# create user
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self.cur.execute("INSERT INTO user (email, passhash) VALUES(?, ?);",
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(json['email'], json['passhash']))
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return User(self, self.cur.lastrowid)
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def authenticate(self, email, password):
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# check email/password
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self.cur.execute("SELECT id, passhash FROM user WHERE email=?;",
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(email, ))
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row = self.cur.fetchone()
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if not row:
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return None
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if not scrypt_mcf_check(row[1].encode('ascii'),
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password.encode('utf-8')):
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return None
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return User(self, row[0])
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def by_email(self, email):
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self.cur.execute("SELECT id FROM user WHERE email=?;", (email, ))
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row = self.cur.fetchone()
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if not row:
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return None
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return User(self, row[0])
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def close(self):
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self.conn.close()
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class User(object):
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def __init__(self, db, uid):
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# set cookie
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response.set_cookie('uid', uid, secret=db.secret, path='/')
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self.db = db
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self.uid = uid
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def state(self):
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return dict(foo='bar')
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class DBPlugin(object):
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name = 'DBPlugin'
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api = 2
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def __init__(self, loginpage):
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self.db = DB()
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self.loginpage = loginpage
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def close(self):
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self.db.close()
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def apply(self, callback, route):
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uservar = route.config.get('user', None)
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dbvar = route.config.get('db', None)
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signature = Signature.from_callable(route.callback)
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@wraps(callback)
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def wrapper(*args, **kwargs):
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if uservar and uservar in signature.parameters:
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uid = request.get_cookie('uid', secret=self.db.secret)
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if uid is None:
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return redirect(self.loginpage)
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kwargs[uservar] = User(self.db, uid)
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if dbvar and dbvar in signature.parameters:
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kwargs[dbvar] = self.db
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return callback(*args, **kwargs)
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return wrapper
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